Seismic tomography uses earthquake waves and computers to study cross sections of the mantle.
Answer the following statement true (T) or false (F)
True
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Tropical winds generally blow in which direction in both hemispheres?
A) from east to west B) from south to north C) from north to south D) from west to east E) there are no prevailing wind directions in the tropics
If a mineral is opaque, lustrous, malleable and can conduct heat and electricity, it is a(n) ________
A) element B) metal C) radioactive element D) crystal E) gemstone
Although the jigsaw-puzzle fit of the southern continents was noted, opponents of continental drift argued that, even if continental displacement had occurred,
a good fit between the continents today would be unlikely. What geologic evidence did they cite to support this claim? A) Deposition in river deltas had changed the longshore current, resulting in erosion. B) The tensional stress of splitting sheared the continents beyond all repair. C) Wave erosion and coastal deposition have changed the shape of the continents. D) Fissure eruptions along continental margins had created new land.
Frozen dew:
A) coalesces as ice crystals on surfaces. B) is easy to remove from a windshield. C) is more dangerous than frost. D) is milky in color.